CN116900423B - Pneumatic tapping tool and method for screw hole fitter with outer circumference of cabin perpendicular to axis - Google Patents
Pneumatic tapping tool and method for screw hole fitter with outer circumference of cabin perpendicular to axis Download PDFInfo
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- CN116900423B CN116900423B CN202310708347.0A CN202310708347A CN116900423B CN 116900423 B CN116900423 B CN 116900423B CN 202310708347 A CN202310708347 A CN 202310708347A CN 116900423 B CN116900423 B CN 116900423B
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- 238000010079 rubber tapping Methods 0.000 title claims abstract description 69
- 238000000034 method Methods 0.000 title claims abstract description 15
- 230000006835 compression Effects 0.000 claims abstract description 16
- 238000007906 compression Methods 0.000 claims abstract description 16
- 229910000831 Steel Inorganic materials 0.000 claims description 11
- 239000010959 steel Substances 0.000 claims description 11
- 239000002775 capsule Substances 0.000 claims description 4
- 210000000078 claw Anatomy 0.000 claims description 4
- 238000005056 compaction Methods 0.000 claims description 4
- 238000003801 milling Methods 0.000 claims description 4
- 230000007704 transition Effects 0.000 claims description 4
- 238000003754 machining Methods 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 3
- 108010066057 cabin-1 Proteins 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23G—THREAD CUTTING; WORKING OF SCREWS, BOLT HEADS, OR NUTS, IN CONJUNCTION THEREWITH
- B23G1/00—Thread cutting; Automatic machines specially designed therefor
- B23G1/16—Thread cutting; Automatic machines specially designed therefor in holes of workpieces by taps
- B23G1/18—Machines with one working spindle
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23G—THREAD CUTTING; WORKING OF SCREWS, BOLT HEADS, OR NUTS, IN CONJUNCTION THEREWITH
- B23G1/00—Thread cutting; Automatic machines specially designed therefor
- B23G1/44—Equipment or accessories specially designed for machines or devices for thread cutting
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jigs For Machine Tools (AREA)
Abstract
The invention relates to a pneumatic tapping tool for a threaded hole bench worker with the outer circumference perpendicular to an axis of a cabin, which is characterized by comprising a base (2), a plurality of compression blocks (3), a plurality of fastening screws (5) and a zero-degree pin (4); the base (2) is a three-section step shaft revolving body, the three-section step shaft of the three-section step shaft revolving body is a left shaft (21), a middle shaft (22) and a right shaft (23), the diameter of the left shaft (21) is smaller than that of a flanging inner hole on the end face of the cabin body (1) to be processed, and the left shaft (21) and the flanging inner hole on the end face of the cabin body (1) to be processed are in clearance fit for radial positioning; a plurality of threaded blind holes (211) are uniformly distributed on the left end face of the left shaft (21); the invention only needs to align once relative to an angle of 0 degrees, and the following work can be automatically completed by the machine. The invention has simple operation process of aligning relative to 0 degree angle in turn, and is easy to learn and easy to get.
Description
Technical Field
The invention relates to a pneumatic tapping tool and a pneumatic tapping method for a screw hole fitter with the outer circumference of a cabin perpendicular to an axis, and relates to a high-efficiency pneumatic tapping method for the screw hole fitter with the outer circumference of a cabin to be processed perpendicular to the axis, and the tool thereof, which can realize the high-efficiency tapping of the screw hole with the outer circumference of the cabin to be processed perpendicular to the axis.
Background
The pneumatic tapping machine greatly improves the efficiency of the tapping of the fitter, but the pneumatic tapping machine can only tap the threaded hole with the axis parallel to the rotation axis of the tap of the head of the tapping machine, so the pneumatic tapping machine is most suitable for the tapping of the fitter with a plane dense hole array (the axis of the hole is vertical to the plane); the outer surface of the cabin body to be processed is mostly a revolution body with centripetal threaded holes or steel wire screw sleeve holes densely distributed (the axis of the threaded holes is vertically intersected with the axis of the cabin body to be processed), and the angular relationship of the threaded holes is complex, so that a fitter often selects manual tapping in production practice, the efficiency is low, and how to combine the high efficiency of a pneumatic tapping machine with the structural characteristics of the cabin body to be processed, so that the efficient pneumatic tapping of the peripheral central threaded holes of the external circle of the cabin body to be processed becomes a difficult problem to be solved urgently at present.
Disclosure of Invention
The invention provides a pneumatic tapping tool and a pneumatic tapping method for a threaded hole fitter with the outer circumference of a cabin to be machined perpendicular to an axis, and the pneumatic tapping tool and the pneumatic tapping method for the threaded hole fitter with the outer circumference of the cabin to be machined perpendicular to the axis are achieved.
The pneumatic tapping tool for the screw hole bench worker is characterized by comprising a base 2, a plurality of compaction blocks 3, a plurality of fastening screws 5 and a zero-degree pin 4;
the base is a three-section step shaft revolving body, the three-section step shaft of the three-section step shaft revolving body is a left side shaft 21, a middle shaft 22 and a right side shaft 23, the diameter of the left side shaft 21 is smaller than the diameter of a flanging inner hole on the end face of the cabin body 1 to be processed, and the left side shaft 21 is in clearance fit with the flanging inner hole on the end face of the cabin body 1 to be processed for radial positioning; a plurality of threaded blind holes 211 are uniformly distributed on the left end face of the left shaft 21; the diameter of the intermediate shaft 22 is larger than the diameter of the outer circle of the cabin to be processed; the diameter of the right shaft 23 is matched with that of a three-jaw chuck of the dividing head 6 with the three-jaw chuck;
the compressing block 3 is a compressing plate commonly used for milling, is made of steel, is long, and is provided with a long round hole 31 in the middle for the fastening screw 5 to pass through, and a boss 32 is arranged on the lower surface of the tail part; the tightening screw 5 fixes the compaction block 3 on the threaded blind hole 211;
the zero-degree pin 4 is a multi-section step pin, the multi-section step column of the zero-degree pin 4 is divided into a plurality of shafts from left to right, the diameters of the shafts are sequentially increased, the rightmost shaft is the largest, and the rightmost shaft is used in a cutter chuck arranged on the head 7 of the pneumatic tapping machine; the steps of the zero-degree pin 4 correspond to bottom holes 11 with different diameters respectively;
the common inner hexagon screw or the outer hexagon screw of the fastening screw is selected from standard components, and the screw specification is matched with a plurality of threaded blind holes on the left end face of the base;
each shaft of the zero-degree pin 4 is in clearance fit with a bottom hole 11 on the surface of the cabin 1 to be processed with different diameters, and the diameter of the shaft corresponding to the zero-degree pin 4 matched with the bottom hole 11 is slightly smaller than the diameter of the bottom hole 11; the bottom hole 11 is a threaded bottom hole or a steel wire screw sleeve hole;
during operation, the right shaft 23 of the base 2 is inserted into the three-jaw chuck of the index head 6 with the three-jaw chuck for fixation, the flanging inner hole of the cabin body 1 to be processed is sleeved on the left shaft 21 of the base 2, and the end face of the cabin body 1 to be processed is tightly attached to the left side face of the middle shaft 22 of the base; the plurality of fastening screws 5 pass through the plurality of compression blocks 3 to be in threaded connection with threaded holes on the left end face of the left shaft 21 on the base 2, and the front ends of the plurality of compression blocks 3 are pressed on the inner side face of the inner flanging of the cabin 1 to be processed; the maximum diameter shaft of the zero degree pin 4 is inserted into a tool holder on the head 7 of the pneumatic tapping machine for fixing, for alignment of the relative 0 ° of the capsule 1 to be machined.
The pitch circle diameter of the plurality of threaded blind holes 211 is 0.65-0.8 times of the diameter of the left shaft 21, and the depth of the threaded blind holes 211 is 20-30 mm.
Four threaded blind holes 211 are formed; the corresponding plurality of compression blocks 3 and the plurality of fastening screws 5 are four each.
The diameter of the left shaft 21 of the base 2 is 0.04-0.08 mm smaller than the diameter of the flanging inner hole on the end surface of the cabin body 1 to be processed, and the length of the left shaft 21 is 5-8 mm; the diameter of the intermediate shaft 22 is 20-50 mm larger than the diameter of the outer circle of the cabin to be processed, and the length is 10-20 mm; the diameter of the right shaft 23 isThe length is 50-80 mm, and the connection part of the right shaft 23 and the middle shaft 22 is in rounded transition.
The diameter of the shaft of the zero-degree pin 4 matched with the bottom hole 11 on the surface of the cabin to be processed is 0.01-0.025 mm smaller than the diameter of the bottom hole 11.
The zero-degree pin 4 is a five-section stepped pin, and five shafts from left to right are an A shaft, a B shaft, a C shaft, a D shaft and an E shaft; the E shaft with the largest diameter is a mounting handle, the diameterThe length is 30-50 mm, and the lengths of the axis A, the axis B, the axis C and the axis D are all 10-12 mm; the diameter of the axis A is smaller than the diameter of the axis B, the diameter of the axis C is smaller than the diameter of the axis D, and the diameter of the axis E is smaller than the diameter of the axis E.
The method for pneumatically tapping the cabin 1 to be processed by utilizing a pneumatic tapping tool for a threaded hole fitter with the outer circumference perpendicular to the axis of the cabin comprises the following steps:
step one, fixing an index head 6 with a three-jaw chuck on the right upper surface of a bench platform 8, and inserting a right shaft 23 of a base 2 into the three-jaw chuck of the index head 6 with the three-jaw chuck for fixing;
step two, sleeving a flanging inner hole of the cabin body 1 to be processed on the left shaft 21 of the base 2, so that the end surface of the cabin body 1 to be processed is tightly attached to the left side surface of the middle shaft 22 of the base 2; 4 fastening screws 5 penetrate through the 4 compression blocks 3 and are in threaded connection with 4 threaded holes in the upper left end face of the left shaft 21, the front ends of the 4 compression blocks 3 are pressed on the inner side face of the flanging in the cabin body to be processed, the fastening screws 5 are slightly screwed firstly, and the cabin body 1 to be processed is ensured to rotate along the axis under the condition of applying force;
step three, fixing the pneumatic tapping machine 7 on a bench worker platform 8, and inserting the mounting stem E of the zero-degree pin 4 into a cutter chuck on the pneumatic tapping machine head 7 for fixing;
selecting a bottom hole 11 at the outer surface 1 of the cabin body to be processed as a relative 0-degree angle, axially rotating the cabin body 1 to be processed by a left hand, and inserting a zero-degree pin 4 into the hole by a handle moving machine head on a machine head 7 of a pneumatic tapping machine by a right hand claw until a shaft corresponding to the diameter of the hole on the zero-degree pin 4 is inserted into the hole to be tightly matched with the zero-degree pin, and tightening a fastening screw 5 to ensure that the cabin body 1 to be processed and a base 2 are reliably connected without relative sliding, so that the alignment of the relative 0-degree angle item of the cabin body to be processed is finished;
step five, removing the head 7 of the pneumatic tapping machine for a proper distance, taking down the zero-degree pin 4 to replace the zero-degree pin with a required tap, and then moving the head 7 of the pneumatic tapping machine for tapping; after all the threaded holes of the specification on the angle of 0 degrees relative to the cabin to be machined are machined, rotating a handle of the dividing head 6 with the three-jaw chuck according to the model, sequentially adjusting bottom holes 11 of other angles to be vertical to the bench worker platform 8 in axis, and finishing tapping; and then replacing taps with other specifications and the like to finish the processing of all bottom holes 11 on the outer surface of the cabin to be processed.
The invention has the beneficial effects that:
(1) The pneumatic tapping machine is used for tapping the threaded holes with complex angular relation on the outer surface of the cabin to be processed, and compared with manual tapping by a fitter, the efficiency is improved by more than 5 times;
(2) The machine can automatically finish the following work only by aligning once at an angle of 0 degrees. The invention has simple operation process of aligning relative to 0 degree angle in turn, and is easy to learn and easy to get.
Drawings
FIG. 1 is a schematic diagram of a cabin 1 to be processed;
FIG. 2 is a second schematic diagram of the structure of the cabin 1 to be processed;
FIG. 3 is a schematic view of the structure of the base 2;
FIG. 4 is a schematic structural view of the pressing plate 3;
FIG. 5 is a schematic view of the structure of the zero degree pin 4;
FIG. 6 is an exploded view of the tooling of the present invention;
FIG. 7 is a schematic diagram of the method of the present invention;
FIG. 8 is a second schematic diagram of the method of the present invention;
FIG. 9 is a third schematic diagram of the method of the present invention.
1 is a cabin to be processed; 2 is a base; 3 is a compacting block; 4 is a zero degree pin; 5 is a fastening screw; 6 is an index head with a three-jaw chuck; 7 is a pneumatic tapping machine head, 8 is a bench, 11 is a bottom hole, 21 is a left side shaft, 22 is a middle shaft, 23 is a right side shaft, 31 is a slotted hole, 32 is a boss, 211 is a threaded blind hole, and A, B, C, D, E are respectively an A shaft, a B shaft, a C shaft, a D shaft and an E shaft of the zero-degree pin 4 in the embodiment.
Detailed Description
Examples:
the invention provides a high-efficiency pneumatic tapping method for a threaded hole fitter with the outer circumference of a cabin perpendicular to an axis and a fixture thereof, and the related fixture comprises the following components: base 2, compact heap 3 (4), fastening screw 5 (4), zero degree round pin.
The base is 3The diameter of the left shaft 21 is 0.04-0.08 mm smaller than the diameter of a flanging inner hole on the end surface of the cabin body to be processed, the length of the left shaft 21 is 5-8 mm, the left shaft 21 is matched with the flanging inner hole of the cabin body 1 to be processed for radial positioning, 4M 5-M10 threaded blind holes 211,4 threaded blind holes 211 are uniformly distributed on the left end surface of the left shaft 21, the pitch circle diameter of the threaded blind holes 211 is 0.65-0.8 times the diameter of the left shaft 21, and the depth of the threaded blind holes 211 is 20-30 mm; the diameter of the intermediate shaft 22 is 20-50 mm larger than the diameter of the outer circle of the cabin body 1 to be processed, and the length is 10-20 mm; the diameter of the right shaft 23 isThe length is 50-80 mm, and the connection part of the right shaft 23 and the middle shaft 22 is in rounded transition.
The compressing block 3 is a pressing plate commonly used for milling, is made of steel, is long, and is provided with a long round hole 31 in the middle for a fastening screw to pass through, and a boss 32 is arranged on the lower surface of the tail.
The fastening screw 5 is a common inner hexagon screw or an outer hexagon screw, a standard part is selected, and the screw specification is matched with the 4 threaded blind holes on the left end face of the base.
The zero-degree pin 4 is a 5-section step pin, and is respectively provided with an axis A, an axis B, an axis C, an axis D and an axis E from left to right, and the diameters of the zero-degree pin are sequentially increased; the length of the shaft A to the shaft D is 10-12 mm, and the head is chamfered; if the surface 1 of the cabin body to be processed is a threaded hole, the diameters of the shaft A, the shaft B, the shaft C and the shaft D are respectively matched with the bottom holes of the threads M3, M4, M5 and M6, and the diameters of the shafts are 0.01-0.025 mm smaller than the diameters of the corresponding bottom holes; if the surface of the cabin body 1 to be processed is a steel wire screw sleeve hole, the diameters of the shaft A, the shaft B, the shaft C and the shaft D are respectively matched with the bottom holes of the ST3, ST4, ST5 and ST6 steel wire screw sleeves, and the diameters of the shafts are 0.01-0.025 mm smaller than the diameters of the corresponding bottom holes; the shaft E is a mounting handle with the diameterThe length is 30-50 mm.
The right shaft 23 of the base 2 is inserted into the three-jaw chuck of the index head 6 with the three-jaw chuck for fixation, the flanging inner hole of the cabin body 1 to be processed is sleeved on the left shaft 21 of the base, and the end face of the cabin body 1 to be processed is tightly attached to the left side face of the middle shaft 22 of the base; 4 fastening screws penetrate through 4 compression blocks 3 and are in threaded connection with 4 threaded holes on the upper left end face of the base 2, and the front ends of the 4 compression blocks 3 are pressed on the inner side face of the inner flanging of the cabin body 1 to be processed; the mounting handle of the zero-degree pin 4 is inserted into a cutter chuck on the head 7 of the pneumatic tapping machine for fixing, and is used for aligning the relative 0 degree of the cabin 1 to be processed.
The specific implementation technical scheme is as follows:
the first step: the dividing head 6 with the three-jaw chuck is fixed on the right side of the bench, and the right shaft of the base 2 is inserted into the three-jaw chuck of the dividing head for fixation.
And a second step of: sleeving a flanging inner hole of the cabin body 1 to be processed on the left side shaft of the base, and enabling the end surface of the cabin body 1 to be processed to be tightly attached to the left side surface of the middle shaft of the base; the 4 fastening screws penetrate through the 4 compacting blocks and are in threaded connection with the 4 threaded holes in the upper left end face of the base, the front ends of the 4 compacting blocks are pressed on the inner side face of the inner flanging of the cabin body 1 to be processed, the fastening screws are slightly screwed down first, and the cabin body 1 to be processed is ensured to rotate along the axis under the condition of force application.
And a third step of: the pneumatic tapping machine is fixed on a bench worker platform, and the mounting handle of the zero-degree pin 4 is inserted into a cutter chuck on the machine head of the pneumatic tapping machine 7 for fixation.
Fourth step: the screw thread bottom hole at the outer surface 1 of the cabin body to be processed is selected as a relative 0-degree angle, the left hand rotates the right hand claw of the cabin body to be processed along the axial direction to hold the handle moving machine head on the machine head of the pneumatic tapping machine, the zero-degree pin is inserted into the hole until the shaft corresponding to the diameter of the hole on the zero-degree pin is inserted into the hole to be tightly matched with the zero-degree pin, the fastening screw is screwed, the reliable connection of the cabin body 1 to be processed and the base 2 is ensured to have no relative sliding, and the alignment of the relative 0-degree angle item of the cabin body 1 to be processed is completed.
Fifth step: the head of the pneumatic tapping machine 7 is moved away for a proper distance, the zero-degree pin is taken down and replaced with a tap which is needed, and then the head is moved for tapping; after all the threaded holes of the specification on the angle of 0 degrees relative to the cabin body to be machined are machined, rotating the dividing head handle according to the model to sequentially adjust the threaded holes of the rest angles to be vertical to the bench worker platform, and completing tapping; and then replacing taps with other specifications and the like to finish the machining of all threaded holes on the outer surface of the cabin body 1 to be machined.
The following detailed description of the preferred embodiments of the present invention is provided in connection with the accompanying drawings so that the advantages and features of the present invention will be more readily understood by those skilled in the art, but it should be noted that the disclosed embodiments are intended to aid in a further understanding of the present invention, and that various alternatives and modifications are possible without departing from the spirit and scope of the present invention and the appended claims. Therefore, the invention should not be limited to the disclosed embodiments, but rather the scope of the invention is defined by the appended claims.
A high-efficiency pneumatic tapping method for a threaded hole bench worker with the outer circumference perpendicular to an axis of a cabin body and a tool thereof, and the related tool comprises the following steps: base 2, compact heap 3, fastening screw 5 (2), zero degree round pin.
The base shown in fig. 3 is a 3-section step shaft revolving body, the diameter of the left shaft 21 is 0.05mm smaller than the diameter of a flanging inner hole on the end face of the cabin body 1 to be processed, the length of the left shaft 21 is 6mm, the left shaft 21 is matched with the flanging inner hole of the cabin body 1 to be processed for radial positioning, 4M 6 threaded blind holes are uniformly distributed on the left end face of the left shaft 21, the pitch circle diameter of the 4 threaded blind holes 211 is 0.7 times the diameter of the left shaft, and the depth of the threaded blind holes 211 is 20mm; the diameter of the intermediate shaft is 25mm larger than the diameter of the outer circle of the cabin body 1 to be processed, and the length of the intermediate shaft is 10mm; the diameter of the right shaft 23 is60mm long, the right shaft 23 and the junction of the intermediate shaft are in rounded transition.
The compressing block 3 shown in fig. 4 is a compressing plate commonly used for milling, is made of steel, is long, and is provided with a long round hole 31 in the middle for the fastening screw 5 to pass through, and a boss 32 is arranged on the lower surface of the tail part; the fastening screw 5 is a common M6 outer hexagon screw.
The zero-degree pin 4 shown in fig. 5 is a 5-section stepped pin, and the diameters of the zero-degree pin are sequentially increased from left to right along an axis A, an axis B, an axis C, an axis D and an axis E respectively; the length of the shaft A to the shaft D is 11mm, and the head is chamfered; the surface of the cabin body 1 to be processed is provided with steel wire screw sleeve holes, the diameters of the shaft A, the shaft B, the shaft C and the shaft D are respectively matched with the bottom holes of the ST3, ST4, ST5 and ST6 steel wire screw sleeves, and the diameters of the shafts are correspondingly compared with the diameters of the shaftsThe diameter of the bottom hole is 0.01mm smaller; the shaft E is a mounting handle with the diameterThe length is 35mm.
As shown in fig. 6 to 8, a right shaft 23 of the base is inserted into a three-jaw chuck of the dividing head for fixing, a flanging inner hole of the cabin to be processed is sleeved on a left shaft of the base, and the end face of the cabin to be processed is tightly attached to the left side face of a middle shaft of the base; 4 fastening screws penetrate through 4 compacting blocks and are in threaded connection with 4 threaded holes on the upper left end face of the base, and the front ends of the 4 compacting blocks are pressed on the inner side face of the flanging in the cabin body to be processed; the mounting handle of the zero-degree pin is inserted into a cutter chuck on the machine head of the pneumatic tapping machine for fixing and is used for aligning the relative 0-degree cabin to be machined.
The specific implementation technical scheme is as follows:
as shown in fig. 7 to 9, the index head with the three-jaw chuck is fixed on the right side of the bench, and the right shaft of the base is inserted into the three-jaw chuck of the index head to be fixed; then sleeving a flanging inner hole of the cabin to be processed on the left side shaft of the base, and enabling the end face of the cabin to be processed to be tightly attached to the left side face of the middle shaft of the base; 4 fastening screws penetrate through the 4 compression blocks and are in threaded connection with 4 threaded holes in the upper left end face of the base, the front ends of the 4 compression blocks are pressed on the inner side face of the flanging in the cabin body to be processed, the fastening screws are slightly screwed down first, and the cabin body to be processed can be ensured to rotate along the axis under the condition of force application; then the pneumatic tapping machine is fixed on a bench, a mounting handle of the zero-degree pin is inserted into a cutter chuck on a machine head of the pneumatic tapping machine for fixing, a threaded bottom hole at the outer surface 1 of the cabin body to be processed is selected as a relative 0-degree angle, a left hand axially rotates a right hand claw of the cabin body to be processed to hold a handle moving machine head on the machine head of the pneumatic tapping machine, the zero-degree pin is inserted into the hole until a shaft corresponding to the diameter of the hole on the zero-degree pin is inserted into the hole for close fit, a fastening screw is screwed, the cabin body to be processed and a base are reliably connected without relative sliding, and the alignment of the relative 0-degree angle item of the cabin body to be processed is completed; finally, the head of the pneumatic tapping machine is moved away for a proper distance, the zero-degree pin is removed and replaced with a tap (shown in fig. 9), and then the head is moved to perform tapping; after all the threaded holes of the specification on the angle of 0 degrees relative to the cabin body to be machined are machined, rotating the dividing head handle according to the model to sequentially adjust the threaded holes of the rest angles to be vertical to the bench worker platform, and completing tapping; and then replacing taps with other specifications and finishing the machining of all threaded holes on the outer surface of the cabin to be machined by analogy.
Claims (7)
1. The pneumatic tapping tool for the screw hole bench worker is characterized by comprising a base (2), a plurality of compaction blocks (3), a plurality of fastening screws (5) and a zero-degree pin (4);
the base (2) is a three-section step shaft revolving body, the three-section step shaft of the three-section step shaft revolving body is a left shaft (21), a middle shaft (22) and a right shaft (23), the diameter of the left shaft (21) is smaller than that of a flanging inner hole on the end face of the cabin body (1) to be processed, and the left shaft (21) and the flanging inner hole on the end face of the cabin body (1) to be processed are in clearance fit for radial positioning; a plurality of threaded blind holes (211) are uniformly distributed on the left end face of the left shaft (21); the diameter of the intermediate shaft (22) is larger than the diameter of the outer circle of the cabin (1) to be processed; the diameter of the right shaft (23) is matched with that of a three-jaw chuck with an index head (6) of the three-jaw chuck;
the compaction block (3) is a commonly used pressing plate for milling, is made of steel, is strip-shaped, and is provided with a long round hole (31) in the middle for a fastening screw (5) to pass through, and a boss (32) is arranged on the lower surface of the tail part; the compression block (3) is fixed on the threaded blind hole (211) by the fastening screw (5);
the zero-degree pin (4) is a multi-section step pin, the multi-section step column of the zero-degree pin (4) is divided into a plurality of shafts from left to right, the diameters of the shafts are sequentially increased, the rightmost shaft is the largest, and the rightmost shaft is used for being arranged in a cutter chuck on the machine head of the pneumatic tapping machine (7); the steps of the zero-degree pin (4) correspond to bottom holes (11) with different diameters respectively;
the fastening screw (5) is a common inner hexagon screw or an outer hexagon screw, and the fastening screw (5) is matched with a plurality of threaded blind holes (211) on the left end face of the base (2);
each shaft of the zero-degree pin (4) is respectively in clearance fit with a bottom hole (11) on the surface of the cabin body (1) to be processed with different diameters, and the diameter of the corresponding shaft of the zero-degree pin (4) matched with the bottom hole (11) is slightly smaller than the diameter of the bottom hole (11); the bottom hole (11) is a threaded bottom hole or a steel wire screw sleeve hole;
when the three-jaw chuck is in operation, the right shaft (23) of the base (2) is inserted into the three-jaw chuck with the index head (6) of the three-jaw chuck for fixation, the flanging inner hole of the cabin body (1) to be processed is sleeved on the left shaft (21) of the base (2), and the end face of the cabin body (1) to be processed is tightly attached to the left side face of the middle shaft (22) of the base; the plurality of fastening screws (5) penetrate through the plurality of compression blocks (3) to be in threaded connection with a threaded blind hole (211) on the left end face of the left shaft (21) on the base (2), and the front ends of the plurality of compression blocks (3) are pressed on the inner side face of the inner flanging of the cabin (1) to be processed; the maximum diameter shaft of the zero degree pin (4) is inserted into a cutter chuck on the head (7) of the pneumatic tapping machine for fixing, and is used for downwards aligning the relative 0 degree of the cabin (1) to be processed.
2. The pneumatic tapping tool for the screw hole bench workers with the outer circumference perpendicular to the axis of the cabin body according to claim 1, wherein the pitch circle diameter of the plurality of screw blind holes (211) is 0.65-0.8 times of the diameter of the left shaft (21), and the depth of the screw blind holes (211) is 20-30 mm.
3. A pneumatic tapping tool for a threaded hole fitter with the outer circumference of the capsule perpendicular to the axis according to claim 1 or 2, wherein the number of threaded blind holes (211) is four; the number of the corresponding plurality of the compression blocks (3) and the corresponding plurality of the fastening screws (5) is four.
4. A pneumatic tapping tool for a threaded hole bench worker with the outer circumference of the cabin being vertical to the axis according to claim 1 or 2, wherein the diameter of the left shaft (21) of the base (2) is 0.04-0.08 mm smaller than the diameter of the flanging inner hole on the end face of the cabin (1) to be processed, and the length of the left shaft (21) is 5-8 mm; the diameter of the intermediate shaft (22) is 20-50 mm larger than the diameter of the outer circle of the cabin (1) to be processed, and the length is 10-20 mm; the diameter of the right shaft (23) isThe connecting part of the right shaft (23) and the middle shaft (22) is rounded with the length of 50-80 mmAnd (5) angle transition.
5. A pneumatic tapping tool for screw hole pliers with the outer circumference of the cabin being perpendicular to the axis according to claim 1 or 2, wherein the diameter of the shaft of the zero degree pin (4) matched with the bottom hole (11) on the surface of the cabin to be processed is 0.01-0.025 mm smaller than the diameter of the bottom hole (11).
6. A pneumatic tapping tool for a threaded hole bench worker with the outer circumference of the cabin perpendicular to the axis according to claim 1 or 2, wherein the zero degree pin (4) is a five-section stepped pin, and the five axes from left to right are an axis a, an axis B, an axis C, an axis D and an axis E; the E shaft with the largest diameter is a mounting handle, the diameterThe length is 30-50 mm, and the lengths of the axis A, the axis B, the axis C and the axis D are all 10-12 mm; the diameter of the axis A is smaller than the diameter of the axis B, the diameter of the axis C is smaller than the diameter of the axis D, and the diameter of the axis E is smaller than the diameter of the axis E.
7. A method for pneumatically tapping a capsule (1) to be machined by means of a pneumatic tapping tool for a threaded hole bench worker with the outer circumference of the capsule perpendicular to the axis of claim 3, comprising the following steps:
fixing an index head (6) with a three-jaw chuck on the right upper surface of a bench worker platform (8), and inserting a right shaft (23) of a base (2) into the three-jaw chuck of the index head (6) with the three-jaw chuck for fixing;
step two, sleeving a flanging inner hole of the cabin body (1) to be processed on a left shaft (21) of the base (2), so that the end surface of the cabin body (1) to be processed is tightly attached to the left side surface of a middle shaft (22) of the base (2); 4 fastening screws (5) penetrate through the 4 compression blocks (3) and are in threaded connection with 4 threaded blind holes (211) on the upper left end face of the left shaft (21), the front ends of the 4 compression blocks (3) are pressed on the inner side face of the inner flanging of the cabin body (1) to be processed, the fastening screws (5) are slightly screwed down firstly, and the cabin body (1) to be processed is ensured to rotate along the axis under the condition of applying force;
fixing the pneumatic tapping machine (7) on a bench worker platform (8), and inserting the E shaft of the mounting handle of the zero-degree pin (4) into a cutter chuck on the head (7) of the pneumatic tapping machine for fixing;
selecting a bottom hole (11) at one position of the outer surface of the cabin body (1) to be processed as a relative angle of 0 DEG, axially rotating the cabin body (1) to be processed by a left hand, and enabling a handle moving machine head on a pneumatic tapping machine head (7) to be locked by a right hand claw to insert a zero-degree pin (4) into the hole until a shaft corresponding to the diameter of the hole on the zero-degree pin (4) is inserted into the hole to be completely matched with the zero-degree pin, and screwing a fastening screw (5) to ensure that the cabin body (1) to be processed is reliably connected with a base (2) without relative sliding, so that the alignment of the relative angle of 0 DEG of the cabin body (1) to be processed is completed;
step five, removing the head (7) of the pneumatic tapping machine for a proper distance, taking down the zero-degree pin (4) and replacing the zero-degree pin with a tap required, and then moving the head (7) of the pneumatic tapping machine for tapping; after all the threaded holes of the specification on the angle of 0 degrees relative to the cabin body (1) to be machined are machined, rotating a handle of an index head (6) with a three-jaw chuck according to a model, and sequentially adjusting bottom holes (11) of other angles to be perpendicular to a bench worker platform (8) in axis to finish tapping; and then replacing taps with other specifications and finishing the machining of all bottom holes (11) on the outer surface of the cabin to be machined by analogy.
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| CN202310708347.0A CN116900423B (en) | 2023-06-15 | 2023-06-15 | Pneumatic tapping tool and method for screw hole fitter with outer circumference of cabin perpendicular to axis |
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| CN202310708347.0A CN116900423B (en) | 2023-06-15 | 2023-06-15 | Pneumatic tapping tool and method for screw hole fitter with outer circumference of cabin perpendicular to axis |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109530822A (en) * | 2018-11-09 | 2019-03-29 | 中国航空工业集团公司西安飞行自动控制研究所 | A kind of Universal tap device |
| CN110076397A (en) * | 2019-05-22 | 2019-08-02 | 宁夏银星吴忠仪表流体控制股份有限公司 | A kind of tapping tool |
| CN110405292A (en) * | 2019-07-19 | 2019-11-05 | 北京航天新风机械设备有限责任公司 | A kind of threaded hole positioning tool of taper cabin vertical bus |
| CN110466801A (en) * | 2019-05-24 | 2019-11-19 | 上海宇航***工程研究所 | A kind of aircraft section structure |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6519985B2 (en) * | 1999-09-24 | 2003-02-18 | Christopher J. Grant | Stern drive and outboard locks |
| JP4692904B2 (en) * | 2004-02-19 | 2011-06-01 | ソンフン カンパニー リミテッド | Master spindle for tapping machine |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109530822A (en) * | 2018-11-09 | 2019-03-29 | 中国航空工业集团公司西安飞行自动控制研究所 | A kind of Universal tap device |
| CN110076397A (en) * | 2019-05-22 | 2019-08-02 | 宁夏银星吴忠仪表流体控制股份有限公司 | A kind of tapping tool |
| CN110466801A (en) * | 2019-05-24 | 2019-11-19 | 上海宇航***工程研究所 | A kind of aircraft section structure |
| CN110405292A (en) * | 2019-07-19 | 2019-11-05 | 北京航天新风机械设备有限责任公司 | A kind of threaded hole positioning tool of taper cabin vertical bus |
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